Article
Chemistry, Multidisciplinary
Zheng Niu, Ziwen Fan, Tony Pham, Gaurav Verma, Katherine A. Forrest, Brian Space, Praveen K. Thallapally, Abdullah M. Al-Enizi, Shengqian Ma
Summary: This study reports a self-adjusting metal-organic framework based on multiple weak binding interactions for capturing trace amounts of xenon and krypton from nuclear reprocessing off-gas. The self-adjusting behavior of ATC-Cu and its mechanism have been visualized and studied. The results show that ATC-Cu exhibits unprecedented high uptake capacities and record xenon capture capability from the nuclear reprocessing off-gas. This work not only provides a benchmark xenon adsorbent, but also proposes a new route for constructing smart materials for efficient separations.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Fuqiang Chen, Jiaqi Ding, Kaiqing Guo, Liu Yang, Zhiguo Zhang, Qiwei Yang, Yiwen Yang, Zongbi Bao, Yi He, Qilong Ren
Summary: Utilizing CoNi alloy nanoparticles embedded carbon adsorbents derived from MOFs, a strategy for Xe/Kr separation demonstrates outstanding performance with high selectivity and binding energy, showing great potential in the gas industries.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Lingshan Gong, Ying Liu, Junyu Ren, Abdullah M. Al-Enizi, Ayman Nafady, Yingxiang Ye, Zongbi Bao, Shengqian Ma
Summary: This study demonstrates that the cationic metal-organic framework, FJU-55, shows highly efficient performance in separating xenon/krypton mixtures. FJU-55 possesses uniform three-dimensional interconnection channels and electro-positive features, resulting in excellent selectivity and adsorption capacity for xenon.
Article
Engineering, Chemical
Chenghui Zhang, Xinglong Dong, Yongwei Chen, Houxiao Wu, Liang Yu, Kang Zhou, Ying Wu, Qibin Xia, Hao Wang, Yu Han, Jing Li
Summary: Efficient separation of Xenon (Xe) and krypton (Kr) is achieved using MOF-11 with optimal pore size and accessible open metal sites (OMSs). The material demonstrates high Xe uptake and selectivity through discriminable van der Waals interactions between Xe and Kr, setting a new benchmark for Xe/Kr separation. The strategy presented in this work showcases a balance between uptake and selectivity by leveraging the synergy between optimal pore size and OMSs.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Lingshan Gong, Ying Liu, Junyu Ren, Abdullah M. Al-Enizi, Ayman Nafady, Yingxiang Ye, Zongbi Bao, Shengqian Ma
Summary: FJU-55, a cationic metal-organic framework, shows highly efficient Xe/Kr separation performance due to its uniform three-dimensional interconnection channels and electro-positive features. It has good Xe adsorption capacity, excellent Xe/Kr selectivity, and high adsorption heat. Molecular modeling studies reveal that the suitable pore size and abundant aromatic ligands in FJU-55 provide strong interactions, contributing to its superior gas separation performance.
Article
Chemistry, Multidisciplinary
Min-Bum Kim, Alexander J. Robinson, Maria L. Sushko, Praveen K. Thallapally
Summary: Obtaining pure Xe from various sources is important for the environment and industry. The aluminum-based MOF (Al-SDB) showed high Xe capacity and selectivity for Xe/Kr separation. It also demonstrated potential for PSA process. The breakthrough experiment further confirmed its efficiency in separating Xe/Kr mixtures under flow conditions.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Hyojin Kim, Jong Hyeak Choe, Minjung Kang, Dong Won Kang, Hongryeol Yun, Jeongwon Youn, Weon-Gyu Lee, Jung-Hoon Lee, Chang Seop Hong
Summary: A Hofmann-type framework, Co(DABCO)[Ni(CN)(4)], has been developed for temperature-dependent switchable Xe/Kr separation, with high Kr/Xe and high Xe/Kr selectivity. This unique adsorption behavior is attributed to the temperature-dependent rotational configuration of the DABCO ligand.
Article
Engineering, Chemical
Rundao Chen, Bin Sheng, Fang Zheng, Jiaqi Li, Haoran Sun, Fangru Zhou, Lihang Chen, Zhiguo Zhang, Qiwei Yang, Qilong Ren, Zongbi Bao
Summary: By changing the synthesis conditions, we have successfully constructed an adsorbent named MIP-203-F with a one-dimensional pore instead of the original cage-like metal-organic framework MOF-801. The Xe/Kr separation performance of MIP-203-F is thoroughly evaluated and the adsorption mechanism is elucidated in detail. Due to its uniform pore size and abundant polarization groups, MIP-203-F can selectively polarize and recognize atomic Xe/Kr gases, setting a new record for zirconium-organic frameworks in the capture and separation of Xe/Kr.
Article
Nanoscience & Nanotechnology
Lingshan Gong, Yingxiang Ye, Ying Liu, Yunbin Li, Zongbi Bao, Shengchang Xiang, Zhangjing Zhang, Banglin Chen
Summary: In this study, a novel ultramicroporous hydrogen-bonded organic framework (HOF-40) constructed from a cyano-based organic building unit was reported. The results showed that HOF-40 exhibited superior separation performance for xenon/krypton mixtures, and the pore confinement effect and abundant accessible binding sites played a synergistic role in this challenging gas separation.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Jiali Huang, Yunbin Li, Hao Zhang, Zhen Yuan, Shengchang Xiang, Banglin Chen, Zhangjing Zhang
Summary: This article reports the structure of a new type of microporous material, hydrogen-bonded organic frameworks (HOFs), with a 4-fold interpenetrated diamond network structure, which exhibits excellent chemical and thermal stability. The activated HOF-FJU-46 shows the highest xenon uptake and xenon/krypton selectivity among the reported HOFs to date.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Environmental
Zijun Yan, Yu Luo, Bo Chen, Fenglei Wang, Lang Chen, Zining Wang, Pengwei Zhao, Jinyang Kang, Zhihai Fu, Yongdong Jin, Yuanhua Wang, Chuanqin Xia
Summary: This study investigates the role of three conjugated microporous polymer materials in the separation of xenon and krypton. The results show that the CMP-PY-TBTP polymer exhibits the highest selectivity for xenon/krypton separation, while the CMP-PY-TFB polymer exhibits the highest xenon adsorption. These findings have important applications in the separation of xenon and krypton in nuclear waste reprocessing.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Jiahui Zeng, Yu Fu, Yue Wu, Shanshan Wang, Wenxiang Zhang, Heping Ma
Summary: The research team has designed an innovative method to recover Xe by using a stable fluorinated metal-organic framework (MOF) NbOFFIVE-1-Ni to eliminate CO2 from moist exhaled anesthetic gases. The experimental results show that NbOFFIVE-1-Ni has excellent CO2 selectivity and can effectively remove carbon dioxide for Xe recovery and recycling.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Heng Liang, Kun Jiang, Tong-An Yan, Guang-Hui Chen
Summary: This study utilized machine learning and simulation techniques to screen MOFs with high Xe/Kr adsorption selectivity. The XGBoost model showed superior accuracy in predicting the adsorption and separation performance of MOFs, with structural descriptors playing a key role in influencing the prediction performance.
Article
Chemistry, Multidisciplinary
Yi Xie, Xiaojun Ding, Jianchen Wang, Gang Ye
Summary: Hydrogen-bonded frameworks built from charged components or metallotectons offer diverse guest-framework interactions for target-specific separations. In this study, the coordination chemistry of monovalent halide anions was systematically explored to develop hybrid H-bond synthons for the construction of microporous H-bonded frameworks with tunable surface polarity for efficient Xe/Kr separation. The spherical halide anions readily participate in charge-assisted H-bonding assembly, resulting in robust frameworks with open pore channels. The activated frameworks exhibit preferential binding towards Xe due to enhanced polarizability and pore confinement effect.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Environmental
Yixuan Yu, Xianhai Li, Xiubo Min, Mingyang Shang, Ping Tao, Tianjun Sun
Summary: This study focuses on the effects of channel morphology and Bronsted acidity on noble gas separation using three different zeolites. ZSM-5 has been found to have better selectivity for separating Xe and Kr, making it an efficient method for capturing Xe from used radioactive gas and cryogenic air.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Review
Chemistry, Multidisciplinary
Jian Liu, Timothy A. Goetjen, Qining Wang, Julia G. Knapp, Megan C. Wasson, Ying Yang, Zoha H. Syed, Massimiliano Delferro, Justin M. Notestein, Omar K. Farha, Joseph T. Hupp
Summary: This review focuses on how porous, catalyst-containing MOFs utilize molecular-scale confinement to regulate reactant and product transport, catalyst activity, and stability, to achieve desired chemical transformations with superior selectivity or efficacy compared to catalysts in homogeneous solution environments.
CHEMICAL SOCIETY REVIEWS
(2022)
Article
Chemistry, Physical
Aaron E. B. S. Stone, Shawn Irgen-Gioro, Rafael Lopez-Arteaga, Joseph T. Hupp, Emily A. Weiss
Summary: Metal-organic framework (MOF) zeolitic imidazolate framework-8 (ZIF-8) is used as a novel encapsulation material to regulate the inter-QD spacing of quantum dots (QDs), improving the photoluminescence quantum yield (PL QY) and irradiation power density of the films.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Subhadip Goswami, Kaikai Ma, Jiaxin Duan, Kent O. Kirlikovali, Jiaquan Bai, Joseph T. Hupp, Peng Li, Omar K. Farha
Summary: This study investigated the charge transport properties of electrochemically active hydrogen-bonded organic frameworks (HOFs) through electrochemical experiments. The results showed that HOF-102 films have high electrical conductivity and charge diffusion coefficients, making them suitable for supporting electrocatalysis.
Article
Chemistry, Physical
Timothy A. Goetjen, Julia G. Knapp, Zoha H. Syed, Ryan A. Hackler, Xuan Zhang, Massimiliano Delferro, Joseph T. Hupp, Omar K. Farha
Summary: The inherent crystallinity of metal-organic framework (MOF) catalysts allows for the understanding of the active site structure at the molecular level. This study demonstrates the competence of a MOF-supported Cr3+ catalyst for ethylene polymerization, resulting in crystalline linear polyethylene with low polydispersity. Single crystal X-ray diffraction analysis provides insight into the interaction between the co-catalyst and the active site of the pre-catalyst, offering the opportunity for the study of a structurally well-defined olefin polymerization system. This research contributes to the development of next-generation heterogeneous catalyst systems.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Qining Wang, Zihan Pengmei, Riddhish Pandharkar, Laura Gagliardi, Joseph T. T. Hupp, Justin M. M. Notestein
Summary: Metal-organic frameworks (MOFs) are promising materials for studying catalytically active structures. By adjusting the nickel loading on MOF NU 1000, the effect of metal nuclearity in MOF-supported catalysts was investigated, and it was found that higher nickel loading led to higher ethylene hydrogenation catalytic rates. This suggests the need for at least two proximal nickel ions for effective catalysis.
JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Physical
Jiaxin Duan, Subhadip Goswami, Sameer Patwardhan, Joseph T. Hupp
Summary: Imparting electrical conductivity to metal-organic frameworks (MOFs) can make them functional for various applications. The anisotropic electrical conductivity of the MOF NU-1000 has been studied, and it was found that the attachment and adhesion mode of the MOF to the electrode might be responsible for the large apparent differences in conductivity. The apparent conductivity of MOF-525 was evaluated and compared with NU-1000, and it was found that MOF-525 exhibited much smaller apparent conductivities for redox hopping.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Subhadip Goswami, Martino Rimoldi, Ryther Anderson, Changmin Lee, Xinlin Li, Alice Li, Pravas Deria, Lin X. Chen, Richard D. Schaller, Diego A. Gomez-Gualdron, Omar K. Farha, Joseph T. Hupp
Summary: Photoactive metal-organic framework (MOF) thin films have the potential to be used in devices for solar energy conversion. This study focuses on optimizing the growth of MOF thin films with uniform thickness. By adjusting the metal identity, pillaring ligand composition, and supporting-surface chemical functionality, smoother films can be obtained.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Zhihengyu Chen, Gautam D. Stroscio, Jian Liu, Zhiyong Lu, Joseph T. Hupp, Laura Gagliardi, Karena W. Chapman
Summary: In this study, the temperature dependence of the local and long-range structure of metal-organic frameworks (MOFs) based on NU-1000 was investigated using synchrotron X-ray total scattering. It was found that the local distortion of Zr6 nodes was dependent on the stability of the ligands, leading to a negative thermal expansion of the extended framework. A new mechanism for this negative thermal expansion was revealed, which involved an increase in the population of a smaller, distorted node state with increasing temperature. Control of the node distortion allowed for control of the dynamic structure of MOFs.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Zhiyong Lu, Jiaxin Duan, Hao Tan, Liting Du, Xiang Zhao, Rui Wang, Satoshi Kato, Shilong Yang, Joseph T. Hupp
Summary: By adjusting the linker of a typical zirconium-based MOF (NU-1000), a new isomer with blocked c-pores and large mesopores (ISO-NU-1000) was successfully synthesized. ISO-NU-1000 exhibits excellent water stability, high water vapor uptake capacity, and cycle stability, making it a promising candidate for water-vapor-sorption-based applications.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Boris Kramar, Nathan C. Flanders, Waleed Helweh, William R. Dichtel, Joseph T. Hupp, Lin X. Chen
Summary: The article highlights the importance of covalent organic frameworks (COFs) and metal-organic frameworks (MOFs) in energy transport, as well as their potential advantages in applications such as photocatalysis and organic optoelectronics. By studying the exciton properties, diffusion, and transport of different materials, the potential application value of these materials is revealed.
ACCOUNTS OF MATERIALS RESEARCH
(2022)
Article
Chemistry, Physical
Qin Liu, Zhihengyu Chen, Hafeera Shabbir, Jiaxin (Dawn) Duan, Wentuan Bi, Zhiyong Lu, Neil Schweitzer, Selim Alayoglu, Subhadip Goswami, Karena W. Chapman, Rachel B. Getman, Qining Wang, Justin M. Notestein, Joseph T. Hupp
Summary: This study demonstrates that disk-like polyoxometalate clusters can be confined in a specific pore and orientation within a hierarchically porous Zr(iv)-based MOF, allowing for the isolation of each cluster and enhancing catalytic performance of single-metal-atom catalysts.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Nanoscience & Nanotechnology
Ahmet Atilgan, Yassine Beldjoudi, Jierui Yu, Kent O. Kirlikovali, Jacob A. Weber, Jian Liu, Dahee Jung, Pravas Deria, Timur Islamoglu, J. Fraser Stoddart, Omar K. Farha, Joseph T. Hupp
Summary: This study reports the synthesis of robust and porous BODIPY-containing polymers through copolymerization and postsynthetic modification. These polymers exhibit high surface areas, molecular-scale porosity, and excellent photocatalytic activity.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Zhiyong Lu, Jiaxin Duan, Liting Du, Qin Liu, Neil M. Schweitzer, Joseph T. Hupp
Summary: Chemically and hydrolytically stable MOFs have promising water-vapor adsorption properties. However, MOFs that can effectively harvest water from low-humidity air are rare. The researchers incorporated free halide ions into a Zr-MOF and achieved high water-uptake capacity, stability, and complete uptake at low relative humidity.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Materials Science, Multidisciplinary
Xiaofeng Chen, Pradeepkumar Jagadesan, Silvano Valandro, Joseph T. Hupp, Kirk S. Schanze, Subhadip Goswami
Summary: By using fluorescence lifetime imaging (FLIM), we have successfully analyzed the polymorphs in NU-1000, revealing the presence of NU-901 and its distribution within the crystallites. This work demonstrates the significance and application value of FLIM in studying polymorphs in MOFs.
ACS MATERIALS LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Kent O. Kirlikovali, Subhadip Goswami, Mohammad Rasel Mian, Matthew D. Krzyaniak, Michael R. Wasielewski, Joseph T. Hupp, Peng Li, Omar K. Farha
Summary: Recent advancements in conductive metal-organic frameworks and covalent organic frameworks have led to increased interest in leveraging electronic materials due to their tunability, porosity, and crystallinity. Hydrogen-bonded organic frameworks are an emerging class of porous materials with weaker, reversible interactions, presenting challenges in isolation and activation. A novel approach using a tetrathiafulvalene (TTF) core has been developed to create a permanently porous HOF with electrical conductivity, showing promising results in structural characterization studies.
ACS MATERIALS LETTERS
(2022)
Article
Chemistry, Applied
Lulu Wan, Gan Ye, Yuying Chang, Zhaohan Yang, Guangming Shi, Qiuli Zhang, Jin Wang
Summary: This study developed an efficient approach to upgrade the oxidative desulfurization (ODS) performance of Zr-MOFs with proton stimulation. Experimental results showed that the introduction of protons can significantly improve the ODS efficiency. This work provides a facile and efficient strategy for enhancing the ODS performance of pristine MOFs.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Qiqi Lu, Xiu-Zhi Wei, Qi Zhang, Xinghua Zhang, Lungang Chen, Jianguo Liu, Yubao Chen, Longlong Ma
Summary: The application of Pd-M bimetallic clusters in the selective hydrogenation reaction was investigated, and the Pd0.6Ni@S-1 catalyst was found to exhibit high selectivity in the conversion of phenylacetylene to styrene. The confinement effect of zeolite inhibited over-hydrogenation and improved the stability of the catalysts. Furthermore, the solvent properties also influenced the product distribution.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Review
Chemistry, Applied
Bo Li, Lumin Hong, Changdi Jing, Xianyang Yue, Huabo Huang, Qianqian Jiang, Jianguo Tang
Summary: MOF materials with adjustable pore structure and polymetallic sites have been explored as electrocatalysts for OER. Bimetallic materials show higher electrocatalytic activity than monometallic materials, while carbon-coated and doped MOF catalysts exhibit stable and good OER activity. The synergistic interaction between polymetallic active sites effectively improves the intrinsic activity of MOF on OER.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Shichun Gu, Ruyi Wang, Junxiong Zhang, Hairong Dong, Liping Deng, Xue Wang, Yapeng He
Summary: In this study, monodispersed hollow mesoporous organosilica nanospheres with controlled core cavity and mesoporous shell were successfully synthesized. These hollow nanospheres showed a high adsorption capacity for Pb2+ in water solution and exhibited acceptable recycling and stability.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Lucie Havelkova, Bogdana Bashta, Michaela Vankova, Jiri Zednik, Jiri Brus, Jan Svoboda, Alice Vagenknechtova, Jan Sedlacek
Summary: An atom-economic one-step chain-growth coordination homopolymerization providing high yields of functionalized hyper-cross-linked polyacetylenes with a permanent micro/mesoporous texture and a BET area of up to 1062 m2/g is reported. The homopolymerization is highly compatible with the heteroatom groups of the monomers and allows the preparation of well-defined porous networks with a wide spectrum of univalent groups.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Shirui Pang, Yuxin Liu, Zhe Zhang, Yuxin Li, Chunguang Li, Zhan Shi, Shouhua Feng
Summary: This study focuses on using a functional separator to suppress the shuttle effect of soluble lithium polysulfides in Li-S batteries. It is found that the functionalized sulfonic acid group not only accelerates the conduction of lithium ions, but also repels polysulfide anions through electrostatic interactions. The performance of the batteries is significantly improved with the use of this functionalized separator.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Pingping Li, Lei Han, Donghun Kim, Kemal Celebi
Summary: This study presents a fast synthetic strategy for the preparation of high-quality platelike MFI crystals using a thin-wall tubular reactor. The strategy is efficient, time-saving, and can be optimized, making it applicable to the preparation and optimization of other important materials.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Haitao Yin, Wei Wang, Yuxin Li, Hu Wen, Shuang Chen, Nanzhe Jiang
Summary: This study presents a template-free and solid-state-like crystallisation method for the synthesis of ZSM-5 zeolite, which can be scaled-up in production. Mechanical mixing of starting material components improves the dispersion of materials, leading to ZSM-5 zeolite with high crystallinity and size uniformity.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Congli Li, Jiang Wang, Zhenfei Wang, Jinxiang Dong, Qi Shi
Summary: This study investigates the evolution and autoreduction behavior of Cu species in CuCl/NaY adsorbent during vacuum thermal activation. It is found that Cu species migrate from supercages to the nearby plane of the six-membered ring connecting the supercage and sod cage during vacuum activation. At 150 degrees C, vacuum autoreduction occurs, resulting in the formation of Cu+Cl- species. The results provide reference for the preparation of pi-complex adsorbents.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Irena Khatrin, Iman Abdullah, Alan J. Mccue, Yuni K. Krisnandi
Summary: Hierarchical porous system with two types of mesopores provides a solution to the diffusion limitation in conventional zeolites. Cobalt oxide impregnated hierarchical ZSM-5 zeolite samples with intra- and inter-crystalline mesopores were synthesized using two different strategies. The physicochemical properties of the modified catalysts were analyzed, revealing distinct features given by the two mesoporous configurations. Catalytic activity analysis showed that Co-oxide/ZSM-5 with inter-crystalline mesopores exhibited higher activity in methane partial oxidation reaction compared to Co-oxide/ZSM-5 with intra-crystalline mesopores.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Nataliia Reinders, Martin Durovic, Pavla Honcova, Zaneta Dohnalova, Jana Luxova, Stanislav Slang, Jhonatan Rodriguez-Pereira, Petra S. Sulcova
Summary: This study presents a new method for preparing a microporous Ni2P/C catalyst with high catalytic activity. The redox reaction and carbon matrix formation during high-temperature treatment contribute to the stability and activity of the catalyst. Experimental and analytical results suggest that the microporous structure of the composite plays a crucial role in its catalytic performance. These findings are important for practical applications of efficient hydrogen production by water electrolysis.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Ana Raquel Bertao, Viktoriya Ivasiv, Cristina Almeida-Aguiar, Patricia R. Correia, Antonio M. Fonseca, Manuel Banobre-Lopez, Fatima Baltazar, Isabel C. Neves
Summary: This study developed a zeolite-based delivery system (ZDS) using silver and 5-Fluorouracil as antimicrobial and antineoplastic agents. The ZDS was characterized and its antimicrobial properties were investigated, showing better antibacterial effectiveness for the ZDS containing both silver and 5-FU.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Naonobu Katada, Nobuki Ozawa, Etsushi Tsuji, Keigo Kanehara, Akiho Otsuka, Taiga Sakamoto, Kirari Umezawa, Hitoshi Matsubara, Satoshi Suganuma, Momoji Kubo
Summary: First principles calculations were used to investigate the pathway for methylation of benzene with methane catalyzed by MFI type zeolite-supported Co species. The strong adsorption of benzene on Co is found to lower the activation energy for methane dissociation and promote the formation of toluene precursor. The activation energy of methane dissociation is also affected by the Al-Al distance.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Yuan Liu, An T. Ta, Kyoung Chul Park, Shenyang Hu, Natalia B. Shustova, Simon R. Phillpot
Summary: We use density functional theory to investigate the interactions of cerium, americium, and curium cations with crown ethers. Our results demonstrate that crown ethers can capture cerium, americium, and curium ions, and modifying the crown ether structure by substituting nitrogen atoms for oxygen atoms significantly increases their binding energies with radionuclides.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Zhengwu Peng, Shixing Wang, Yihui Wu, Xiang Liu, Hongliang Liu, Dekun Zhang, Likang Fu
Summary: An efficient adsorbent for recovery of germanium was prepared and characterized in this study. The adsorption behavior of Ge(IV) on the adsorbent was analyzed, and the results showed that it follows pseudo-secondary kinetic model and Langmuir isotherm model. The adsorbent exhibited good anionic anti-interference ability and can still maintain high adsorption efficiency after repeated adsorption.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
